A) \[0.4\]
B) \[0.25\]
C) \[0.2\]
D) \[0.1\]
Correct Answer: B
Solution :
Given, \[m=20g,\,\,m=8kg,u=500m{{s}^{-1}}\] \[\upsilon =100m{{s}^{-1}}\] By the law of conservation of momentum, \[m\mu =m\upsilon +m\upsilon \Rightarrow \,\upsilon =1m{{s}^{-1}}\] As, \[f=\mu \,\,mg=ma\] \[a=\mu g=\frac{{{\upsilon }_{2}}}{2s}\] \[\mu =0.25\]You need to login to perform this action.
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